In Joensuu pyramidal halos were seen for several hours. In single photos lower 9° plate arc is visible ( 1 ). Stacked images reveal more features ( 1 – 2 – 3 ). Some of the halos are labelled: plate arcs “p” and circular halos “h” (or just the radii).

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3 comments

Congratulations to you all! This is a wonderful series. I’ve been looking forward to the images since I heard there was something going on over Finland 🙂
The pyramidal crystals seem to have arrived to Hungary today. But nothing comparable to these photos, only a weak 9° halo.